Portable charger



FIG. 1 is a perspective view showing a portable charger.

FIG. 2 is a front view of a portable charger.

FIG. 3 is a rear view of a portable charger.

FIG. 4 is a top view of a portable charger.

FIG. 5 is a bottom view of a portable charger.

FIG. 6 is a side view of a portable charger; and,

FIG. 7 is a side view of a portable charger.

The broken lines in the figures represent portions of the article which form no part of the claim. 

CLAIM The ornamental design for a portable charger, as shown and described. 